LM5180: Setup for phase margin

Takashi Onawa

Part Number: LM5180

Hi Team,

My customer want to check a phase margin of their own design. Could you tell me setup example for phase margin measurement of LM5180?

Regards,

Takashi Onawa

over 2 years ago

+1 Daniel Li14 over 2 years ago

TI__Mastermind 27030 points

as LM5180 is internal compensation, currently we don't have way to test externally. Do you have customer schematic? We can sim based on the Input and output condition.

0 Takashi Onawa over 2 years ago in reply to Daniel Li14

TI__Genius 13200 points

Hi Daniel-san,

OK, I understood. I'm just asking them to provide that to the customer.

By the way, could you tell me the control type of this device, like voltage, current or hysteresis?

Regards,

Takashi Onawa

0 Daniel Li14 over 2 years ago in reply to Takashi Onawa

TI__Mastermind 27030 points

it is Peak Current Mode control

0 Takashi Onawa over 2 years ago in reply to Daniel Li14

TI__Genius 13200 points

Hi Daniel-san,

I will send you their schematic and transformer info offline.

Regards,

Takashi Onawa

0 Denislav Petkov over 2 years ago in reply to Takashi Onawa

TI__Mastermind 18940 points

Hi Onawa-san,

I will close this post for now and wait for Daniel to respond.

Cheers,
Denislav

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LM5180: Setup for phase margin